This downtown Dallas art installation is always on the lookout.

The only ski tunnel in North America provides easy access to amazing snow and beautiful views.

This 24-acre park offers a place for meditation in the midst of Sedona's iconic red rocks.

This off-the-beaten-path abandoned town is a relic of Montana's silver mining boom.

Hidden behind Lincoln's head is a 70-foot-long chamber containing enamel plates documenting American history, sealed in a teakwood box in a titanium vault.

This ramshackle ghost town is comprised of mining-era buildings collected from around the region.

This nearly abandoned town was once a thriving mining community until a series of fires.

The first steel dam in the world and the only one still functional in the United States.

This 1930s log cabin began as a taxidermy museum but is now a popular country music venue.

Crafted in 1911, this steam locomotive spent its entire working life in Flagstaff.

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

A whimsical tower with a spiral staircase, inspired by the Space Age and the Möbius strip.

A breathtaking 19th-century trail overlooks Lake Tahoe.

An unrealized Taoist palace left abandoned in a Houston suburb.

This 19th-century ghost town offers a stunning view of Lake Michigan and a journey through the region's industrial past.

These otherworldly limestone formations jut out from the Kansas prairie.

Here, visitors can swing with the waves of the Pacific Ocean.

A memorial dedicated to the victims of the Columbine High School shootings.

Many generations of travelers have passed through the steep, smooth walls of this canyon.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

A hot dog stand where the heads are just as hot as the dogs.

An oasis of calm amid the chaos of the boardwalk, the museum traces the heritage of this beloved beachside amusement park.

This collection of over 50 classic pinball machines awaits visitors to downtown Roanoke.

Everyone from Mark Twain to Teddy Roosevelt has a pipe hanging from the walls of this historic chophouse.